#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/signalfd.h>
#include "syscall.h"

int signalfd(int fd, const sigset_t * sigs, int flags)
{
    int ret = __syscall(SYS_signalfd4, fd, sigs, _NSIG / 8, flags);
#ifdef SYS_signalfd
    if (ret != -ENOSYS)
        return __syscall_ret(ret);
    ret = __syscall(SYS_signalfd, fd, sigs, _NSIG / 8);
    if (ret >= 0)
    {
        if (flags & SFD_CLOEXEC)
            __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
        if (flags & SFD_NONBLOCK)
            __syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK);
    }
#endif
    return __syscall_ret(ret);
}
